33's with 3" toytec lift?

Just ordered the 3' Toytec lift with aal. The wheels I have are Eagle 137 w/ 4.625 backspacing and +5mm offset. My question is will 285/75 r16 Nitto Grapplers fit with min. rubbing, does the wheel have enough backspacing to keep the tire of the upper A arm? If I need to get wheel spacers, what thickness would work the best? I saw some 1/4" spacers, but I'm not going to get them if I don't need them. Thanks, Z